4-Aminobenzoic Acid - Safety Considerations

Safety Considerations

PABA is largely nontoxic, the median lethal dose of PABA in dogs (oral) is 2 g/kg. Allergic reactions to PABA can occur. PABA is formed in the metabolism of certain ester local anesthetics, and many allergic reactions to local anesthetics are the result of reactions to PABA.

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